Trojans storm to a 4-0 sweep of the Cardinal in Madison, with the clincher from freshman Ryder Jackson.
Trojans drop the doubles point, but rally back with four singles wins in Madison, Wisc.
Daniel Cukierman comes up with another clincher for the Trojans at the top spot.
The Trojans face the Badgers on Tuesday before turning to ITA National Team Indoor Championship action Feb. 14-17.
USC takes its first loss of 2020 in a tight road match.
The Trojans visit the Buckeyes this Sunday for a top-two tangle in Columbus, Ohio.